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中文摘要：
提出一类适应复杂外形的粘性混合网格生成算法。表面网格由前沿推进三角形曲面网格程序获得,边界层布置各向异性的三棱柱体网格,远物面区域采用Delaunay方法生成四面体网格。针对模型的复杂几何特征,综合采用了各种网格处理技术,以保证边界层网格的质量,并避免算法失效问题。网格实例及计算结果表明了本文算法的实用性及和效性。
英文摘要：
A hybrid mesh generation algorithm is proposed for viscous computations of three-dimensional complex aerodynamics models.An initial surface mesh is generated by an advancing front triangulator.Then the boundary layer is configured with anisotropic prismatic elements by an advancing layer mesher.In this step,focuses are on the management of local complex geometric details,aiming at improvement of robustness and quality of boundary layer elements.After boundary layer mesh generation,the unmeshed region,i.e.,the far field of the computational domain,is filled with isotropic tetrahedral elements by employing a Delaunay-type mesher.Finally,meshes and simulation results of two benchmarks are presented to demonstrate the efficiency and effectiveness of the proposed algorithm.
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